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Articles on Case numbers
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Your blood can hold a record of past illnesses. That information can reveal how many people have had a certain infection – like 58% of Americans having had COVID-19 by the end of February 2022.
With access to testing limited and without other ways of measuring likely infection rates, New Zealand’s confirmed COVID cases are likely to be just a fraction of the total.
COVID-19 cases are skyrocketing across the US. Testing has ramped up over the past few months, but increasing hospitalizations, deaths and test-positivity rates show that the virus is out of control.
Test positivity rates measure the success of a testing program. Even though the US performs a huge number of tests, high test positivity rates across the country show that that it still isn’t enough.
Top contributors
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Associate Professor of Public Policy, University of Maryland, Baltimore County
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Professor of Statistics and Interim Dean, College of Science, Virginia Tech
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Project Lead - COVID Modeling Aotearoa; Senior Lecturer - Department of Physics, University of Auckland; Principal Investigator - Te Pūnaha Matatini, University of Auckland
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Postdoctoral Scholar in Medicine, University of California, San Francisco
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Senior researcher in the Information and Cyber Security Centre within the Defence and Security cluster, Council for Scientific and Industrial Research
